Button



(No Model.)

W. H. MATTHEWS.

BUTTON. No. 295,032. Patented Mar.vv l11, 1884.

. 5 ATTORNEYS UNITED STATES WILLIAM H. MATTHEWS,

OF LIVINGSTON, TEXAS.

BUTTON.

4SPEC!IFICATION forming part of Letters Patent NO295,G32, dated March 1l, 1884.

Application led November 17, 1883. (No model.)

To NZZ whom, t may concern,.-

Beit known that I, WILLIAM H. MATTHEWS,

a citizen of the United States, resident at Liv.-

ingston, in the county of Polk and State of Texas, have invented tains to make and use the same, ing the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure l ofthe drawings is a representation of a perspective view of the button attached to a section of material. Fig. 2 is a transverse sectional view of the same. Figs. 3, 4, 'and 5 are detail views of the disks, serrations, axial openings, and screws. ofthe disk, showing the spring-pawl; and Fig. 7 is a transverse sectiona-l View of the button attached to the material, and showing the spring-pawl.

This invention has relation to buttons; and it consists in the construction and novel arrangement of devices whereby the button is attached to the material, all as hereinafter set forth, and particularly pointed out in the appended claim.

In the accompanying drawings, the letter a designates the head of a button,havingashank, b, which is formed with a threadedaxial recess, c, to receive thcscrewe of the base-disk d. The end of the shank ,b is formed withratchetserrations or radial corrugations, as indicated at g.

h represents a washer or clarnpdisk, which has a central opening, k', through which passes the screw e of the base-disk. The inner surfaces of the clamp disks It and d are made somewhat concave, their marginal edges being Fig. 6 is a detail view f turned toward each other, as indicated at Z, to grip the clothon opposite sides of which they are placed, as indicated at m. Sometimes the i central portion of the outer surface of the disk h is formed with radial ratchet serrations or corrugations, to engage the serrations g of the end ofthe shank b when the latter is screwed up against said disk. In this position the elasticity of the material pressed between the disks will cause the serrations of the outer disk to engage those of the shank b with sutt cient irmness to prevent the button-head from turning backward off the screw e. Usually, however, the loose spring-pawl, c, which extends through an opening, s, in said disk to engage the ratchet serrations of the end of the shank b. In order to release the shank when it is desired to remove the button, the pawl is prol vided with an arm, z, which extends through a perforation, n, made in the disk at a point farther from its center than the .opening s. When this arm z is pressed upon, it depresses the pawl o sufficiently to allow the buttonhead to be unscrcwed.

Having described this claim, and desire to secure l 1S` In a detachable button, the combination, l with the hollow threaded shank of the buttonhead, having end serrations, g, and the basedisk d, having a central screw, of the loose clamp-disk h, applied on the screw, and having a springpawl or projection to engage the serrations of the shank, substantially as specified. In testimonywhereof I aiix my signature in presence of two witnesses.

WM. H. MATTHEWS.

invention, what. I by Letters Patent,

Vitnesses:

T. L. FREEMAN, W. D. WILLIS.

diskh is provided with a 

